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Chemistry 9th Class English Medium Online Test MCQs With Answers
Question # 1
The compund formed by oppoite charges are known as.
Choose an answer
Metallic solids
Ionic compounds
Non-polar Covalent compound
None of the above
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Question # 2
N-shell contains number of subshells.
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1
3
4
2
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Question # 3
Every atom has a natural tendency to accommodate electrons in its valence shell
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2 or 6
2 or 4
2 or 8
2 or 10
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Question # 4
The elementss of group 1 and 2 are placed in which block
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s
p
d
f
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Question # 5
Such reaction which continue in both directins are called.
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Dynamic
Irreversible
Reversible
Non- reactive
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Question # 6
Why the gas starts coming out when you open a can of fizzy drink.
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Because gteh solubiliyt of the gas increases
Because the gas is dissolved under pressure hence it comes out when pressur eis decreased
Becaue the gas is insoluble in water
Because the solubility of hte gas decreases at high pressure.
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Question # 7
Aerobic respiration releases........energy than anaerobic respiration.
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Equal
Less
More
None of these
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Question # 8
Which one of the suspension.
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Chalk in water
Tootpast
Ink
Blood
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Question # 9
Water has high boiling point as compared a alcohol due to
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Low density
High surface tension
Hydrogen bonding
High vapour pressure
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Question # 10
What information was obtained fom discharge tube expriments?
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Electrons and protons were discovered
Structur eof atom was discovered
Neutrons and protons were discovered
Presence of nucleus in an atom was discovered
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Question # 11
All Acids turn blue litmus.
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Pink
White
Colourless
Red
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Question # 12
How many covalent bonds does C
2
H
2
molecule have.
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Two
Three
Four
Five
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Question # 13
John Dalton put forward his atomic theory.
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1800
1803
1805
1903
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